Volcano: a weak spot in the crust where molten material or magma comes to the surface. Magma: a molten mixture of rock-forming substances, gases, and water from the mantle. Lava: when magma reaches the surface. Ring of Fire: a major volcanic belt formed by the many volcanoes that rim the Pacific Ocean. Island Arc: volcanoes creating a string of islands. Hot Spot: an area where magma from deep within the mantle melts through the crust.
Table of Contents
Volcanoes and Plate Tectonics 3.1
Vocabulary:
Volcano: a weak spot in the crust where molten material or magma comes to the surface.
Magma: a molten mixture of rock-forming substances, gases, and water from the mantle.
Lava: when magma reaches the surface.
Ring of Fire: a major volcanic belt formed by the many volcanoes that rim the Pacific Ocean.
Island Arc: volcanoes creating a string of islands.
Hot Spot: an area where magma from deep within the mantle melts through the crust.
Outline:
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